Re: [Freedreno] [PATCH 3/4] drm/msm/dp: Initialize the INTF_CONFIG register

[abhinavk@codeaurora.org]

On 2021-05-10 21:20, Bjorn Andersson wrote:
> Some bootloaders set the widebus enable bit in the INTF_CONFIG 
> register,
> but configuration of widebus isn't yet supported ensure that the
> register has a known value, with widebus disabled.
> 
> Fixes: c943b4948b58 ("drm/msm/dp: add displayPort driver support")
> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Abhinav Kumar <abhinavk@codeaurora.org>
> ---
>  drivers/gpu/drm/msm/dp/dp_catalog.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/gpu/drm/msm/dp/dp_catalog.c
> b/drivers/gpu/drm/msm/dp/dp_catalog.c
> index a0449a2867e4..e3996eef5518 100644
> --- a/drivers/gpu/drm/msm/dp/dp_catalog.c
> +++ b/drivers/gpu/drm/msm/dp/dp_catalog.c
> @@ -707,6 +707,7 @@ int dp_catalog_panel_timing_cfg(struct dp_catalog
> *dp_catalog)
>  	dp_write_link(catalog, REG_DP_HSYNC_VSYNC_WIDTH_POLARITY,
>  				dp_catalog->width_blanking);
>  	dp_write_link(catalog, REG_DP_ACTIVE_HOR_VER, dp_catalog->dp_active);
> +	dp_write_p0(catalog, MMSS_DP_INTF_CONFIG, 0);
>  	return 0;
>  }